Bromwich Castle was in the large village now called Castle Bromwich in the West Midlands.
Map of Castle Bromwich, UK
The remains of a motte and bailey castle have been largely destroyed by the construction of the M6 motorway. There is evidence for a timber structure on top of the motte and for 12-13th century buildings inside the bailey along with a 16th-century house.
References
Bromwich Castle Wikipedia(Text) CC BY-SA